title: Effect of abscisic acid and hydrogen peroxide on antioxidant enzymes in Syzygium cumini plant.
abstract: The present study was undertaken to study the effect of abscisic acid and hydrogen peroxide on the activities of antioxidant enzymes namely superoxide dismutase (SOD; E.C. 1.15.1.1), catalase (CAT; E.C. 1.11.1.6) and ascorbate peroxidase (APX; E.C. 1.11.1.11) in Syzygium cumini plant. The varying concentrations of ABA (2-8 mM/l) and H2O2 (2-8 mM/l) modulated enzyme activities differently. In general, some concentrations of the ABA and H2O2 stimulated the activities of all the three enzymes except that there was a dose dependent reduction in catalase activity in the plants treated with ABA.
authors.affiliation: Department of Botany, University of Rajasthan, Jaipur, 302004 Rajasthan India.
authors.forename: Ramkishan
authors.initials: R
authors.lastname: Choudhary
authors.forename: Ajaya Eesha
authors.initials: AE
authors.lastname: Saroha
authors.forename: P L
authors.initials: PL
authors.lastname: Swarnkar
keywords: Abscisic acid; Antioxidant enzymes; Hydrogen peroxide; Reactive oxygen species